Ten key adding listing machine



Dec. 4, 1962 E. ZIMMERMANN 3,066,862 TEN KEY ADDING LISTING MACHINEFiled Dec. 28, 1959 2 Sheets-Sheet 2 IMVENTDR ERNST Z/MMERNHNN ii s.

United States Patent Patented Dec. 4, 1982 ice 3,065,862 TEN KEY ADDINGLHSTENG MACHINE Ernst Zimmermann, Zurich, Switzerland, assignor toMachine Tool Works @erlikon, Administration Qompany,

1Zurich-0erlikon, Switzerland, :1 company of Switzer- Filed Dec. 28,1959, Ser. No. 862,275 2 Claims. (Cl. 2356d) The invention relates to aten key adding listing machine, which in the usual manner is providedwith a pin carriage carrying the set pins and is shiftable relative tothe key board, and is provided with two nought keys, one of which servesfor the operation of a single set pin, while the other one is designedfor Simultaneous operation of this set pin and of a second set pinadjacent to this set pin in the direction of movement of the pincarriage, and which has also an operating member for a third set pinadjacent to the two aforesaid set pins likewise in the direction ofmovement of the pin carriage.

In adding listing machines of this kind it has been usual hitherto toprovide a third nought key for the simultaneous operation of all threeset pins. Thereby the entering of three consecutively positioned noughtswithin or at the end of a number is facilitated. However, as anyincrease in the number of keys of a machine involves a complication ofits operation and is particularly undesirable for the touch method, theinvention has the object of allowing the simultaneous adjustment even ofthree noughts in one step with two nought keys only.

With this and other objects in view which will become apparent laterfrom this specification and the accompanying drawings, I provide in aten key adding listing machine having two nought keys, in combination: apin carriage capable of being shifted to-and-fro in one direction; agroup of set pins mounted in the said pin carriage in a row in the saiddirection and shiftable transversely of the said direction; a first mainslide in driving connection with one of the said nought keys and inoperative connection with a single one of the said set pins; a secondmain slide in driving connection with the other one of the said noughtkeys in operative connection with both the said single set pin andanother single set pin arranged adjacent the said first single set pin;an auxiliary slide in operative connection with a third set pin, thesaid other set pin lying between the said first set pin and the saidthird set pin; movable holder means for the said auxiliary slide, thesaid holder means keeping the said auxiliary slide normally in a restposition and permitting an idle movement of the said auxiliary slide inthe said direction as well as a working movement of the said auxiliaryslide transversely of the said direction; and actuating means for thesaid auxiliary slide provided on the said main slides, the saidactuating means effecting the said idle movement of the said auxiliaryslide upon actuation of a single one of the said nought keys, andeffecting the said working movement of the said auxiliary slide uponsimultaneous actuation of both the said two nought keys.

These and other features of my said invention will be clearly understoodfrom the following description of a preferred embodiment thereof givenby way of example with reference to the accompanying drawings, in which:

FIG. 1 is a perspective front view of part of an adding listing machinein the rest position;

FIG. 2 is a diagrammatic vertical section of the machine with the singlenought key depressed and the double nought key omitted;

FIG. 3 is a diagrammatic vertical section of the machine with the doublenought key depressed and the single nought key omitted, and

FIG. 4 is a diagrammatic vertical section of the machine with both thesingle nought key and the double nought key depressed at the same time.

The pin carriage comprises two plates 23 spaced from one another betweenwhich a stationary guide rail 13 is arranged on which the upper platerolls by means of a roller 25. The two plates are provided with severalrows of mutually juxtaposed guide slots 24 for the set pins and withfurther guide slots for L-shaped Zero set pins 26, 17 and 18, one of therows of set pins being associated to each of the zero set pins. Arnovable abutment 5 is arranged in the path of the zero set pins andserves for limiting the path of the pin carriage, when the latter movesin the direction of the arrow A under the bias of a spring (not shown)after the depressing of one of the two nought keys 3 and 19. Each of theZero set pins may be depressed in its guide, and then moves into aposition in which it is outside the range of the abutment 5.

In order to depress the zero set pins 26, 17 and 18 three slides 19, 20and 21 are provided. The end of the slide 19 lies above the longer legof the zero set pin 26, that of the slide 20 lies over the two longerlegs of the zero set pins 26, 17, and that of the slide 21 lies over thelonger leg of the zero set pin 18. The two slides 19 and 20 form angularprojections of the two stems 4 and 9, respectively, carrying the noughtkeys 3 and lit, while the slide 21 forms part of a lever 11. The stems 4and 9 are each guided in a slot of the upper stationary plate 6 andcarry each a guide pin 22, which engages into a slot of a lower,likewise stationary plate 7 and carry each a compression spring 8. On anangle piece 15 fixed to the upper plate 6 a link 12 1s articulated, onwhich in turn the lever 11 is pivotally attached. The latter carries apin 14 projecting into the plane of the stems 4 and 9, and is pulled bya spring 16 towards the upper plate 6. The stem 4 has a projection 27pointing towards the pin 14, and likewise the stem 9 has a downwardprojection 28. Both these proections form in the rest position of thedevice shown in FIG. 1 a V-shaped yoke opening downwardly and reachingover the pin 14 with clearance. The springs 8 bias the stems 4 and 9upward until they abut stops 29 on the plate 6 from below. in order tofacilitate the simultaneous actuating of both keys 3, 10 their adjacentflanks 30 are positioned at an angle to the plane of the stems 4, 9.

The abutment 5 is formed by the end of a lever 31 pivotally mounted onthe plate 7 behind the guide pin 22 and subject to the bias of a tensionspring 36, on which lever a cam 32 is attached. The face slopingbackward in FIG. 1 of this cam is arranged opposite a pin 33 carrying alever 34-, which is pivotally attached at its rear end (FIG. 1) by meansof a holder 35 fixed to the plate 7, and is passed under the angularportions of the slides 19, 2t and 21. This lever is in drivingconnection, in a manner not shown in detail, with the set pins guided inthe slots 24.

The manner of functioning of the adding listing machine described willnow be described. By depressing one of the number keys (not shown) theset pin located under it and guided in one of the slots 24 as well asthe lever 34- are depressed, the pin 33 abutting the cam 32 and forcingthe same forward, while turning the lever 31. In the swung-out positionof this lever the abutment 5 lies outside the range of the zero set pins26, 17, 18 so that the carriage moves one step in the direction of thearrow A under the bias of the spring above-mentioned, not shown. Afterreleasing the number key serving for moving the set pin the lever 31 isswung back by the bias of the spring 36 into a position, in which theabutment 5 engages between the zero set pins 26 and 17.

arr-cases At the same time the lever 3 is swung upward by the cam 32.The adjustment of a further number effects in a like manner the shiftingof the carriage another step; after said step the abutment comes againto he betewen the two. Zero set pins 17 and it In this manner numberscomposed of several digits may be adjusted.

When between any two digits of a number or at the end thereof a noughtoccurs, the nought key 3 is depressed. Then the stem as shown in 2,pushes the zero set pin lying under it downwards and at the same timeturns the lever 3d, whereby the abutment 5 gets in the mannc describedout of the range of the Zero set pins. Together with the stem also theprojection 27 moves downwards. it thereby hits the pin 34 and moves thesame slightly to the right, putting the link 12 into an obliqueposition. This idle movement is however without effect on the Zero setpins of the carriage. The latter then moves in the direction of thearrow A under the action of the spring bias, until the Zero set pinadjacent the depressed zero set pin in the direction opposite the arrowA abuts the stem Upon subsequently eleasing the nought key 3 the lattermoves together with the stem 19 upward under the bias of the spring 3,and thereby releases the carriage for the termination of the stepinitiated. At the same time the lever 31 is swung back to the startingposition by the spring 36. The said zero set pin aojucent to thedepressed zero set pin comes into contact with the abutment 5 when thecarriage is shifted, and thereby prevents any further movement of thecarriage.

When in the number to be adjusted or at the end thereof two consecutivenoughts occur, the key marked with two noughts is depressed as shown inPEG. 3. The slide 2% connected to the stem 9 thereby depressessimultaneously two adjacent Zero set pins and the lever 34, while theprojection 28 pushes the pin 14 and accordingly the lever 11 slightly tothe left. As already described hereinabove, the carriage moves to theleft. Since, however two Zero set pins have been depressedsimultaneously this movement covers two steps.

When in the number to be adjusted three consecutive noughts occur, thetwo nought keys 3 and 10 are depressed simultaneously. This entails theshifting of the slides ll), iii, and the turning of the levers 31, 34-in the manner described. Since now 'both projections 27, 23 engage thepin lid simultaneously, this pin, and with it also the lever ll, aremoved downward against the bias of the spring 16. its slide 21 comes inthis working movement to rest on a zero set pin 18 which in FIG. 4 liesimmediately adjacent the zero set pin 17 depressed by the slide 2%.Since now three consecutive zero set pins have been depressedsimultaneously the carriage moves three steps when both nought keys arereleased.

While i have described herein and illustrated in the accompanyingdrawings what may be considered a typical and particularly usefulembodiment of my said invention i wish it to be understood that I do notlimit myself to the particular details and dimensions described andillustrated; for obvious modifications will occur to a person skilled inthe art.

What I claim as my invention and desire to secure by Letters Patent is:

l. A calculating machine comprising a pin carriage displaceable in afirst direction, drive means for displacing said pin carriage todifferent work positions, said drive means comprising a series of pinsmounted on said pin carriage spaced uniformly from one another in saidfirst direction and adjustably displaceable in a direction transverse tosaid first direction, each of said pins having a front face, a pair ofmain actuating members for said pins displaceable in said adjustabledirection, each of said members having a terminal face, said terminalface of a first member being opposed in each of said work positions tosaid front face of one of said pins, whereby a displacement of saidfirst main actuating member displaces said last-mentioned pin in saiddirection of adjustment, the terminal face of the second of said membersbeing further opposed in each of said work positions to the front faceof said single pin as well as to that of a second in an adjacentposition whereby a displacement of said second main actuating memberdisplaces simultaneously the two last-mentioned pins in the direction ofadjustment, a third actuating member for said pins, having a terminalface opposed in each of said work positions to the front face of a thirdpin adjacent said se ond pin, guiding means engaging said thirdactuating member to impart to the terminal face of said third actuatingmember a displaceability in said first direction as well as in saiddirection of adjustment, drive means connecting each of said mainactuating members with said third actuating member, said last nameddrive means comprising cams and followers resiliently urged against saidcams, whereby actuation of one of said main actuating members displacesthe terminal face of said third actuating member in said firstdirection, and whereby simultaneous actuation displaces the terminalface of said third actuating member in said direction of adjustment.

2. A calculating machine comprising a pin carriage displaceable in afirst direction, drive means for displacing said pin carriage todifferent work positions, said drive means comprising a series of pinsmounted on said pin carriage spaced uniformly from one another in saidfirst direction and adjustably displaceable in a direction transverse tosaid first direction, each of said pins having a front face, a pair ofmain actuating members for said pins displaceable in said adjustabledirection, each of said members having a terminal face, said terminalface of a first member being opposed in each of said work positions tosaid front face of one of said pins, whereby a displacement of saidfirst main actuating member displaces said last-mentioned pin in saiddirection of adjustment, the terminal face of the second of said membersbeing further opposed in each of said work positions to the front faceof said single pin as well as to that of a second pin in an adjacentposition whereby a displacement of said second main actuating memberdisplaces simultaneously the two last-mentioned pins in the direction ofadjustment, each of said main actuating members having one control faceinclined to said first direction and to said direction of adjustment,said control faces of said two main actuating members being opposed toone another, a third actuating member for said pins having a terminalface opposed in each of said work positions to the front face of a thirdpin adjacent said second pin, said third actuating member comprising afollower fixed to said third actuating member and resiliently engagingsaid two control faces, and movable guiding means for said thirdactuating member, said third actuating member being pivotally mounted onsaid guiding means thereby imparting to the terminal face of said thirdactuating member a displaceability in said first direction and in saiddirection of adjustment.

References Cited in the file of this patent UNITED STATES PATENTS2,042,909 Satukangas June 2, 1936

